Cheat Menu:
     While  the game is paused, use D-pad to enter Up, Up, Down, Down,
Left,  Right,  Left,  Right,  White,  Black,  X. Must be done again to
enable multiple cheats at once.

Unlock All Levels, Cutscenes:
     When the game loads up, click Play Game. Select the slot you wish
to  play, on the screen that follows enter Black, White, Black, White,
X.